Home / 132,118.80-198,176.40-43,375.20

Finding the Fourth Proportional to 132,118.80, 198,176.40 and 43,375.20

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Solution

The fourth proportional to 132,118.80, 198,176.40 and 43,375.20 is: 65,062.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,118.80 : 198,176.40 = 43,375.20 : x
  2. Step 2: Convert to fraction form
    132,118.80/198,176.40 = 43,375.20/x
  3. Step 3: Cross multiply
    132,118.80x = 198,176.40 × 43,375.20
  4. Step 4: Simplify right side
    132,118.80x = 8,595,940,985.28
  5. Step 5: Solve for x
    x = 8,595,940,985.28/132,118.80
  6. Step 6: Final answer
    x = 65,062.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.